Adtran is seeking a highly motivated and customer-focused Senior Technical Services Engineer to join their Customer Services team in Gdynia, Poland. This role involves supporting Adtran's technology in pre-sales and post-sales stages, acting as a technical point of contact for local and EMEA customers, consulting on solutions, and providing technology training on products. The position offers an opportunity to work within an international team and includes travel within Poland and the EMEA region.